Hystrichosphaeropsis rectangularis

rectangularis Bujak in Bujak et al., 1980, p.66, pl.16, figs.10–12; text-fig.15.  Holotype: Bujak et al., 1980, pl.16, figs.10–12; Jan du Chêne et al., 1986a, pl.48, figs.8–10.  Age: middle Eocene (see Aubry, 1986).

Parent: Hystrichosphaeropsis